Review of Properties of Water for Mid-term

1. Water is the solvent of life

4. What allows this drop of water to hang there without falling?

5. Polar covalent ~ water In a water molecule, the oxygen is more electronegative than hydrogen partial negative partial positive Oxygen pulls the shared electrons toward itself; the electrons spend more time near the oxygen atom.

7. The slight differences in charge bond water molecules together (H-Bonding)

9. Cohesion: Water molecules stick together surface tension

10. Surface Tension

11. Cohesion: water molecules can move great distances

14. Ice floats! Water molecules in ice (solid water) are farther apart than the molecules in liquid water

16. Hydrogen Bonding in Water

18. Na + Cl – – – – – – – – – – – – + + + + + + + + + + + + + + + + + +

24. Why does ice float?

25. PHASES OF WATER